Sr. C++ Software Developer

Department: Information Technology

Location: Canada-CHQ-Ontario-Toronto

Compensation: $144,300 - $198,400 / year

This full‑time, on‑site position is ideal for experienced software development professionals with an engineering mindset. You will join a team responsible for developing and improving algorithms for automated orthodontic treatment planning software for our Invisalign product. You will work in close collaboration with colleagues from a larger Treatment Planning group and with clinical experts, focusing on algorithmic and mathematical solutions for orthodontic problems.

As a C++ Software Developer, you will participate in end‑to‑end software development, solve open‑ended problems and implement complex algorithms in high quality modern C++, in a regulated environment. This role is vital in delivering the technology that powers Align Technology to deliver superior treatment outcomes and experiences to patients.

• Write C++ software components, perform code reviews, contribute to full test coverage and technical documentation.
• Research and develop 3D measurements and geometrical algorithms to solve engineering and clinical problems.
• Work in an agile team of developers and SQA engineers, and collaborate with other development teams.
• Participate in project planning, sizing/estimation, design, architecture, code reviews and design reviews.
• Investigate and implement bug fixes, and identify opportunities for reliability and performance improvements.
• Productively use LLM development assistants in a complex problem domain.

• Bachelor’s degree or higher in software engineering, computer science, or mathematics.
• 8+ years of experience in the role of C++ developer (writing and managing large code bases, OOP programming, TDD).
• Understanding 3D geometry and computational methods.
• Experience in working with git version control, Visual Studio or VSCode for C++ development.
• Experience using LLM tools like Claude Code, CoPilot, Codex or others.
• General understanding of cloud computing.
• Interest in learning the problem domain.
• Ability to work in a regulated industry, follow a strict process and achieve high quality in every detail.
• Familiarity with modern technologies and ability to learn fast.

• Knowledge of methods of non-linear mathematical optimization.
• Experience with Linux development, including docker and WSL
  2.
• Knowledge of C#, Python, Go.
• Knowledge of AWS native services development (Lambda, EC2, IAM, S3), Splunk, Terraform and Terragrunt.
• Knowledge and understanding of build and deployment pipelines, such as Bamboo and Git Hub Actions.

If provided, base salary or wage rate ranges are the range in which Align reasonably expects to set a candidate’s pay for the posted position. Actual placement depends on the individual skills and experience level of a candidate plus the total compensation and equity across team members. For other locations outside of the primary location, the base salary range will be adjusted geographically.

For Field Sales roles, the salary listed is the base pay only and does not include the applicable incentive compensation plan. A cost of living adjustment may be added to base pay for higher cost areas in the U.S.

Our internship hourly rates are a standard pay determined based on the position and your location, year in school, degree, and experience.

This posting is for an existing vacancy within our organization. Canadian work experience is not required for this position. We welcome applicants from all backgrounds.

We use automated tools (including artificial intelligence “AI”) in our hiring process. This may include AI‑based screening or assessment of applications. All final hiring decisions will be made by humans.

Review our Applicant Privacy Policy for additional information.

Align Technology is an equal opportunity employer. We are committed to providing equal employment opportunities in all our practices, without regard to race, color, religion, sex, national origin, ancestry, marital status, protected veteran status, age, disability, sexual orientation, gender identity or expression, or any other legally protected category. Applicants must be legally authorized to work in the country for which they are applying, and employment eligibility will be verified as a condition of hire.